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A convenient unit for describing the mass of an atom; 1 amu=1/12 the mass of a carbon-12 atom?
Find the Anode Half-Reaction, Cathode Half-Reaction and Volts, Lit. of the following cells Ag-Cd, Ag-Cu, Ag-Pb, Ag-Zn, Cd-Cu, Cd-Pb, Cd-Zn, Cu-Pb, Cu-Zn and Pb-Zn
Explain how many metric tons of 5%-S coal would be required to yield the H2SO4 required to produce a 3.00-cm rainfall of ph 2.00 over a 100-km2 area
question a liter of solution saturated at 25degrees c. with calcium oxalate cac2o4 is evaporated to dryness giving a
Which sample contains more molecules, 3.14 L of Ar at 85.00C and 1111 mm Hg pressure or 11.07g of Cl2?
A buffer is prepared by dissolving 52.203g of HNO2 and 65.552g Mg(NO2)2 into water forming 2.5 L of solution. What is the pH of the buffer. keep in mind: Mg(NO2)2 (s)--------->H30+ (aq) +NO2- (aq)
The bond length of 13 Na 19F is 192.6 pm. calculate the value of B and the spacing between lines in the pure rotational spectrum of this molecule in unit of s^-1
What is the number of moles of atoms of oxygen contained in 49 grams of sulfuric acid, H2SO4?
Xylose has the same structure as glucose apart from that it has a hydrogen atom at C-6 in place of a hydroxymethyl group. The rate of ATP hydrolysis by hexokinase is noticeably enhanced by the addition of xylose as opposed to glucose.
Carbon monoxide reacts with oxygen to form carbon dioxide. Assume you have 56g of carbon monoxide and 32 grams of oxygen, what is the limiting reactant? The chemical equation is:
If you take a 67.5 mL portion of 1.98 M. NH3 stock solution and dilute it to a total volume of 0.600 L, what will the concentration of the final solution be?
Explain what is the molar solubility of Sr3(AsO4)2 as well as the concentration of Sr+2 and AsO4-3 in a saturated solution at 25 C? The Ksp is 1.3x10-18. Illustrate the balanced reaction.
Could Kb for a weak base be determined in the same way that Ka for a weak acid is determined in an experiment
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